JP3247690B2 - Work equipment traveling equipment - Google Patents

Description

Description: TECHNICAL FIELD [0001] The present invention relates to a traveling device of a working machine such as a combine or a harvester.

[Prior Art] As a prior art relating to a traveling device of a working machine, for example,
The microfilm of Japanese Utility Model Application No. 50-163412 (Japanese Utility Model Application Laid-Open No. 52-72241) includes a front drive wheel and a rear idler wheel and a plurality of free wheels disposed between the drive wheel and the idler wheel. In a traveling device of a work machine configured by rolling a crawler around a rolling wheel, all or a part of a free rolling wheel located between the front driving wheel and the rear idler wheel is driven in a traveling state. There is disclosed a traveling device of a working machine provided on an intermediate frame that can be bent and rotated in a vertical direction separately from a wheel and the idler wheel.

In addition, the microfilm of Japanese Utility Model Application No. 55-81329 (Japanese Utility Model Application Publication No. 57-5382) has a plurality of front drive wheels and a rear idler wheel and a plurality of drive wheels disposed between the drive wheels and the idler wheels. In a traveling device of a work machine configured by hanging a crawler around a free wheel, all or a part of a free wheel located between the front drive wheel and the rear idler wheel is moved in a traveling state. There is disclosed a traveling device of a working machine provided on an intermediate frame rotatable in a vertical direction separately from a driving wheel and the idler wheel.

Further, the microfilm of Japanese Utility Model Application No. 58-35901 (Japanese Utility Model Application Laid-open No. Sho 59-140979) includes a front drive wheel and a rear idler wheel, and a plurality of wheels disposed between the drive wheel and the idler wheel. In a traveling device of a working machine configured by hanging a crawler around a free rolling wheel, a free rolling wheel in the middle of front and rear among free rolling wheels located between the front driving wheel and the rear idler wheel,
There is disclosed a traveling device of a working machine provided on a swing arm that is rotatable in a vertical direction separately from the driving wheels, the idle wheels, and the other free wheels in a traveling state.

[Problems to be Solved by the Invention] In the technology disclosed in the microfilm of Japanese Utility Model Application No. 50-163412 (Japanese Utility Model Application Laid-Open No. 52-72241), the intermediate frame supporting the free-wheeling wheels is moved during traveling. It refracts and turns in the vertical direction in accordance with the unevenness of the crawler ground contact surface, and cannot be removed.

Also, in the technique disclosed in the microfilm of Japanese Utility Model Application No. 55-81329 (Japanese Utility Model Application Publication No. 57-5382), the intermediate frame that supports the free-wheeling wheels rotates vertically and is removed. It is not something you can do.

Also, in the technology disclosed in the microfilm of Japanese Utility Model Application No. 58-35901 (Japanese Utility Model Application No. Sho 59-140979), the swinging arm supporting the free-wheeling wheel is adapted to the unevenness of the crawler contact surface during running. It is pivotable in the vertical direction and cannot be removed.

Therefore, in such a conventional technique, for example, even if an attempt is made to remove mud clogged between the inner peripheral surface side of the crawler and the free wheel, the intermediate frame or the swing arm that supports the free wheel is moved to the inner peripheral surface of the crawler. And the intermediate frame or the swinging arm hinders the maintenance from being easily performed.

[Means for Solving the Problems] The present invention employs the following technical means to solve the problems as described above.

That is, the crawler 20 is wrapped around the front drive wheel 21 and the rear idler wheel 22 and the plurality of free rolling wheels 23 disposed between the drive wheel 21 and the idler wheel 22 according to claim 1. In the traveling device of the working machine to be constituted, the front drive wheel 21
All or a part of the free rolling wheel 23 located between the rear wheel and the idler wheel 22 is provided on the intermediate frame 28 which can be detached separately from the drive wheel 21 and the idler wheel 22 in a state other than the running state. A traveling device for a working machine, characterized by:
The working machine described above comprises a front drive wheel 21 and a rear idler wheel 22 and a plurality of free rolling wheels 23 disposed between the drive wheel 21 and the idler wheel 22 with a crawler 20 wound therearound. In the traveling device, all or a part of the free rolling wheels 23 located between the front drive wheels 21 and the rear idler wheels 22,
The travel device for a working machine, wherein the drive wheel 21 and the idler wheel 22 are provided on an intermediate frame 28 that is rotatable outward in a state other than the traveling state.
A front drive wheel 21 and a rear idler wheel 22, and a plurality of free wheels 23 disposed between the drive wheel 21 and the idler wheel 22
In a traveling device of a working machine configured by hanging a crawler 20 around a front wheel, a front and rear middle free wheel 23 of a free wheel 23 located between the front drive wheel 21 and the rear idle wheel 22 is provided.
Is provided on an intermediate frame 28 that can be detached separately from the driving wheels 21, the idle wheels 22, and the other free wheels 23 when the vehicle is not in a traveling state.

According to the first aspect of the present invention, by removing all or a part of the free wheel 23 located between the front drive wheel 21 and the rear idler wheel 22 together with the intermediate frame 28, the crawler 20 The inner peripheral side is opened.

Further, in the invention described in claim 2, the front drive wheel is provided.
By rotating all or part of the free wheel 23 located between the rear wheel 21 and the idler wheel 22 on the rear side together with the intermediate frame 28 outward, the inner peripheral surface side of the crawler 20 is opened.

In the third aspect of the present invention, the front drive wheels 21
By removing the front and rear intermediate free wheel 23 of the free wheel 23 located between the rear free wheel 22 and the intermediate frame 28 separately from the other free wheels 23, the inner circumferential surface of the crawler 20 is removed. The side is open.

[Effects of the Invention] According to the invention described in claim 1, by removing all or a part of the free wheel 23 together with the intermediate frame 28, the inner peripheral surface side of the crawler 20 can be widely opened to facilitate maintenance. it can.

According to the second aspect of the present invention, by rotating all or a part of the free wheel 23 outward together with the intermediate frame 28, the inner peripheral surface of the crawler 20 can be widely opened to facilitate maintenance. it can.

According to the third aspect of the invention, the free rolling wheel 23 in the middle between the front and rear is provided.
By detaching the crawler 20 together with the intermediate frame 28 separately from the other free rolling wheels 23, the inner peripheral surface of the crawler 20 can be widely opened to facilitate maintenance.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. 1 is a body frame of a combine, provided with a threshing device 2 at an upper position of the frame 1, and at a lower position of the machine frame 1. Is provided with a traveling device 3, and a mowing portion 4 which is movable up and down is provided at a front position of the body frame 1.

5 is the weeding body of the cutting unit 4, 6 is the scraping reel, 7 is the same cutting blade, 8 is the same auger that collects the grain stalks cut by the cutting blade 7, 9 is the rear part of the cutting unit 4 and the threshing device. A transport elevator for feeding and transporting the grain stalks cut by the harvesting unit 4 to the threshing device 2, and a transport elevator 9.
Reference numeral 11 denotes a transfer protrusion provided on the outer periphery of the belt 10 at a predetermined interval.

A threshing chamber 12 is formed at the upper front side of the threshing apparatus 2, and a handling cylinder 13 is mounted in the threshing chamber 12. Mainly the lower side of the handling cylinder 13 is surrounded by a handling net 14. Below the threshing chamber 12, a wind selection chamber 15 is formed. Reference numeral 16 denotes a swing sorting device provided in the wind sorting chamber 15, reference numeral 17 denotes a first conveyor provided on the lower front side of the swing sorting device 16, and reference numeral 18 denotes a second conveyor provided behind the first conveyor 17.

The traveling device 3 is composed of a pair of left and right endless crawlers 20.
Is formed around the outer periphery of a rear idler wheel 22 and a plurality of free rolling wheels 23 provided between the drive wheel 21 and the idler wheel 22. When there are four free wheels 23 as shown in FIG. 1, the top free wheel 23 is referred to as a "first wheel",
The free wheel 23 at the last end is called a "final wheel". Reference numeral 25 denotes a traveling frame, which is long in the front-rear direction, and fixes the lower end of the vertical mounting rod 26 on the front side and the lower end of the vertical mounting rod 27 on the rear side as shown in FIG. Mounting rod 26, 27
Is fixed to the body frame 1.

The drive wheel 21, the idler wheel 22, and the free wheel 23 are mounted on a traveling frame 25, and usually the idler wheel 22
Is adjustable in the front-rear direction by expansion and contraction means such as a cylinder and a spring.
Adjust the tension of 20.

Thus, the running frame 25 in the present invention forms an intermediate portion in the length direction on an intermediate frame 28 that can be removed or moved in each direction, and the intermediate frame 28 forms a part of the plurality of free wheels 23. Attach.

In the case of FIG. 2, the traveling frame 25 is formed of three parts, a front side part 30, an intermediate frame 28, and a rear side part 32, and the front end part 29 of the intermediate frame 28 is attached to the rear end part of the front side part 30. The rear side portion 31 of the intermediate frame 28 is butted against the front end of the rear side portion 32, the mounting member 36 is brought into contact with the upper side, and the bolts 33, 33 are screwed together and detachably mounted.

In the case of FIG. 2, the intermediate frame 28 is detached from the front side portion 30 and the rear side portion 32 of the traveling frame 25, and the maintenance of the detached intermediate frame 28 and the maintenance of the crawler 20 where the intermediate frame 28 is removed are performed. . Reference numeral 34 denotes a ground-side crawler of the crawlers 20, and a large space is formed above the ground-side crawler 34 by removing the intermediate frame 28, so that maintenance can be easily performed. After removing the intermediate frame 28, the front side 30 of the traveling frame 25 is
26, and the rear side 32 of the traveling frame 25 has a mounting rod.
Supported by 27 respectively.

FIG. 3 shows the second embodiment, in which the intermediate frame 28 is used.
The rear side portion 31 is supported on the rear side portion 32 of the traveling frame 25 by a mounting bracket 35 so as to be vertically rotatable, and the front end portion 29 of the intermediate frame 28 is
Abuts against the rear end of the front side part 30 and
Is abutted upward, and the bolts 33, 33 are screwed together so that only one end is detachably attached. At the time of traveling, the front end 29 of the intermediate frame 28 is fixed by the mounting fixture 36, and at the time of maintenance, the mounting fixture 36 is removed, and the front end 29 of the intermediate frame 28 is attached to the mounting bracket 35.
Is pivoted upward about.

FIG. 4 shows a third embodiment of the intermediate frame 28 (FIG. 5 is a plan view), in which a U-shaped mounting bracket 37 is fixed to the front end 29 of the intermediate frame 28, and the mounting bracket 37 is connected to the running frame 25. Is fitted to the rear end portion of the front side portion 30, and a pin 38 is inserted into the mounting bracket 37 and the front side portion 30 to be axially mounted. Rear end 31 of intermediate frame 28
, An L-shaped contact member 39 is fixed when viewed from above, and the contact member 39 is brought into contact with the side surface of the rear side portion 32 of the traveling frame 25 and is fixed with a bolt 33 or the like. A cam 40 is fixed to the intermediate frame 28 in the mounting bracket 37, and the cam 40 is brought into contact with a cam surface 41 formed on the front side 30 of the traveling frame 25. 42 is a crawler guide attached to the intermediate frame 28.

6 and 7 show a fourth embodiment of the intermediate frame 28. The intermediate frame 28 is detachably attached to the lower ends of the arms 43, 43.
Axles are mounted on the shafts 44,44. Worm gear 4 on shafts 44,44
Fix worm gears 45, 45 and worm gears 46, 46 to worm gears 45, 45.
Bite. The worm gears 46 are fixed to an operation shaft 47, and the operation shaft 47 is attached to the body frame 1 so as to be rotatable only. A handle 48 is attached to one end of the operation shaft 47,
When the operation shaft 47 is rotated by 48, the arms 43, 43 are rotated via the worm gear 45 and the worm gear 46, and the intermediate frame 28 is moved upward with respect to the ground-side crawler 34. Is removed to form a space.

 Next, the operation will be described.

In the case of the combine, since the above structure is used, when the body is advanced, weeding is performed by the weeding body 5 of the cutting unit 4, the grain stem is scraped by the scraping reel 6, and the sliding blade of the cutting blade 7 is used. The root of the grain stalk is cut by sliding, and the cut grain stalk is scraped into the auger 8 by the scraping reel 6, and the grain stalk is transported by the auger 8 by the transport elevator 9 to the threshing room of the threshing apparatus 2.
Feed to 12 and thresh.

After the work is completed, the traveling frame of the traveling device 3
Mud sticks between the crawler 25 and the ground crawler 34. Leaving the adhered mud causes derailment. This mud adhesion is caused by the intermediate frame 28 of the traveling frame 25 and the ground-side crawler.
Mostly between 34, but the spacing between them is so narrow that mud removal is difficult.

However, the traveling frame 25 of the traveling device 3 for mounting the drive wheel 21, the idle wheel 22, and the free wheel 23 is divided into a front side portion 30, a rear side portion 32, and an intermediate frame 28, and the front side portion 30 and the rear side The side part 32 is fixed to mounting rods 26 and 27 in the vertical direction, and the intermediate frame 28 is detachably mounted between a front end part 29 and a rear end part 31 by a bolt 33 and a mounting member 36,
Since a part of the free wheel 23 is attached to 28, maintenance of the intermediate frame 28 can be performed by removing the intermediate frame 28, and when the intermediate frame 28 is removed, a space above the ground-side crawler 34 is formed at the trace. Maintenance can be performed.

In the second embodiment shown in FIG.
Is attached to the rear side 32 of the traveling frame 25 by a mounting bracket 35 so as to be rotatable, and the front end 29 of the intermediate frame 28 is
Because it is fixed to the front side 30 of the traveling frame 25 by
During maintenance, remove the mounting bracket 36 and the intermediate frame
The front end 29 of the intermediate frame 28 is in a free state, and the front end 29 of the intermediate frame 28 is pivoted upward about the mounting bracket 35, and the crawler 20 is rotated.
A space is formed above the ground-side crawler 34 so that maintenance can be easily performed.

In the third embodiment shown in FIGS. 4 and 5, a U-shaped mounting bracket 37 is fixed to the front end portion 29 of the intermediate frame 28, and the mounting bracket 37 is provided.
Is fixed to the front side portion 30 of the traveling frame 25 by a pin 38, an L-shaped contact member 39 is fixed to the rear end portion 31 of the intermediate frame 28 when viewed from above, and the contact member 39 is attached to the traveling frame 25. Since the abutment member 39 is removed from the rear side portion 32 of the traveling frame 25 because the abutment member 39 is in contact with the rear side portion 32 and is fixed by the bolt 33, the intermediate frame 28 moves the front end portion 29 toward the front side around the pin 38. , A space is formed above the ground-side crawler 34, and the ground-side crawler 34 can be easily cleaned.
Maintenance of the intermediate frame 28 that has been rotated to the front can also be easily performed.

Note that the cam 40 is fixed in the mounting bracket 37, and the cam 40 is pivotally mounted on the pin 38 and abuts against the cam surface 41 formed on the front side portion 30 of the traveling frame 25. To rotate.

6 and 7 show a fourth embodiment of the intermediate frame 28. The lower ends of the arms 43, 43 are attached to the intermediate frame 28, and the upper ends of the arms 43, 43 are attached to the body frame 1 by the shafts 44, 44. The worm gears 45, 45 are fixed to the shafts 44, 44, the worm gears 46, 46 mesh with the worm gears 45, 45, and the worm gears 46, 46 are fixed to the operation shaft 47. When the operating shaft 47 is rotated by the handle 48, the arms 43, 43 are rotated via the worm gear 45 and the worm gear 46, and the intermediate frame 28 is moved upward with respect to the ground-side crawler 34, and Is formed. The intermediate frame 28 is an arm
Since the intermediate frame 28 is detachably attached to the arm 43, maintenance such as cleaning of the intermediate frame 28 and the ground side crawler 34 can be easily performed by removing the intermediate frame 28 from the arm 43.

 Next, the effects will be described.

Conventionally, Japanese Unexamined Utility Model Publication No. 58-12073 discloses a traveling frame in the front-rear direction, a driving wheel provided at a front end of the traveling frame, and a free-moving floating member provided at a rear end of the traveling frame. Wheels, a plurality of front and rear free wheels disposed between the drive wheels and the idler wheels, and a traveling device of a working machine including crawlers wound around these wheels, wherein a cam is provided on an inner surface side of the crawlers. A method in which a shaft is abutted and a crawler is vibrated to remove soil is described and known.

In the above-described known example, the crawler can remove the soil, but cannot remove the soil between the crawler and the plurality of free wheels. In particular, if the work is performed while leaving the mud adhered between the traveling frame and the crawler as it is, it may cause a wheel derailment.

In order to remove the soil between the crawler and the plurality of free wheels, it is preferable to lift the free wheel to create a gap between the crawler and the free wheels, and to clean while applying water.

However, the driving wheel 21 at the front end and the idler wheel 22 at the rear end
A traveling frame 25 for mounting a plurality of free wheels 23 disposed between the drive wheels 21 and the idle wheels 22; and a crawler around the drive wheels 21, the idle wheels 22, and the free wheels 23. The traveling frame 25 includes a front side 30 and a rear side fixed to the frame 1 side of the working machine.
32 and an intermediate frame 28 located between the front side portion 30 and the rear side portion 32. The intermediate frame 28 is provided with all or a part of the free wheel 23 and the free wheel 23. Each of the free wheels 23 can be easily removed from the front side portion 30 and the rear side portion 32 because the traveling device of the working machine is configured to be detachable from the front side portion 30 and the rear side portion 32. The upper surface of the crawler 20 on the side can be widely opened to facilitate maintenance.

A traveling frame 25 for mounting a front end drive wheel 21 and a rear end idler wheel 22 and a plurality of free rolling wheels 23 disposed between the drive wheel 21 and the idler wheel 22; The traveling frame 25 is composed of a wheel 21 and the idler wheel 22 and a crawler 20 wound around the free wheel 23, and the traveling frame 25 is fixed to the frame 1 side of the work machine.
32 and an intermediate frame 28 located between the front side portion 30 and the rear side portion 32. The intermediate frame 28 is provided with all or a part of the free wheel 23 and the free wheel 23. Each of the front side portion 30 and the rear side portion 32 is a traveling device of a working machine that is pivotally supported on one side and the other side is detachable, so that the crawler 20 can be easily cleaned similarly. At the same time, since the removal structure of the intermediate frame 28 is a rotation structure, there is an effect of easy handling.

[Brief description of the drawings]

1 is an overall side view, FIG. 2 is a side view of the first embodiment, FIG. 3 is a side view of the second embodiment, FIG. 4 is a side view of the third embodiment, and FIG. FIG. 6 is a side view of the fourth embodiment, and FIG. 7 is a vertical rear view of the same. DESCRIPTION OF SYMBOLS 1 ... frame, 2 ... threshing device, 3 ... running device, 4 ... reaping unit, 5 ... weed plant, 6 ... scraping reel,
7 cutting blade, 8 auger, 9 transport elevator, 10 belt, 11 transport protrusion, 12 threshing room, 13
…… Handling cylinder, 14… Handling net, 15 …… Wind selection room, 16 …… Swing sorting device, 17 …… First conveyor, 18 …… Second conveyor, 20…
... Crawler, 21 ... Drive wheel, 22 ... Idle wheel, 23 ... Free rolling wheel, 25 ... Running frame, 26,27 ... Mounting rod, 28 ...
Intermediate frame, 29: Front end, 30: Front side, 31: Rear end, 32: Rear side, 33: Bolt, 34: Ground crawler, 35: Mounting bracket, 36: Mounting bracket, 37 Mounting bracket, 38 Pin, 39 Contact member, 40 Cam, 41
Cam surface, 43 ... Arm, 44 ... Shaft, 45, 46 ... Worm gear, 47 ... Operating shaft, 48 ... Handle.

──────────────────────────────────────────────────続 き Continuing from the front page Judge Chief Judge Toshiaki Fujii Judge Ryoichi Mizobuchi Judge Noboru Fujii 1984-5979 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B62D 55/10 B62D 55/14 B62D 55/32

Claims (3)

(57) [Claims] 1. A work in which a crawler 20 is wound around a front drive wheel 21 and a rear idler wheel 22, and a plurality of free wheels 23 disposed between the drive wheel 21 and the idler wheel 22. In the traveling device of the machine, all or a part of the free rolling wheels 23 located between the front driving wheel 21 and the rear idler wheel 22 are used when the driving wheel 21 and the idler wheel are not in the running state. A traveling device for a working machine, wherein the traveling device is provided on an intermediate frame 28 which can be removed separately from the working frame 22. 2. A work in which a crawler 20 is wound around a front drive wheel 21 and a rear idler wheel 22, and a plurality of free wheels 23 disposed between the drive wheel 21 and the idler wheel 22. In the traveling device of the machine, all or a part of the free rolling wheels 23 located between the front driving wheel 21 and the rear idler wheel 22 are used when the driving wheel 21 and the idler wheel are not in the running state. A traveling device for a working machine, wherein the traveling device is provided on an intermediate frame 28 that is rotatable outwardly separately from the intermediate frame 22. 3. A work in which a crawler 20 is wound around a front drive wheel 21 and a rear idler wheel 22, and a plurality of free rolling wheels 23 disposed between the drive wheel 21 and the idler wheel 22. In the traveling device of the machine, the front and rear intermediate free rolling wheels 23 among the free rolling wheels 23 located between the front driving wheels 21 and the rear idle wheels 22 A traveling device for a working machine, wherein the traveling wheel is provided on an intermediate frame 28 which can be detached separately from the idler wheel 22 and another free wheel 23.